A truck salts the road through the Lehigh Parkway in Allentown in this file photo. The National Weather Service said there's a chance for a light wintry mix in the Lehigh Valley on Friday morning, which could include a period of snow, sleet, or freezing rain.

A truck salts the road through the Lehigh Parkway in Allentown in this file photo. The National Weather Service said there's a chance for a light wintry mix in the Lehigh Valley on Friday morning, which could include a period of snow, sleet, or freezing rain. (APRIL BARTHOLOMEW / THE MORNING CALL)

The National Weather Service says there's a chance for a light wintry mix in the Lehigh Valley on Friday morning, which could include a period of snow, sleet, or freezing rain.

The hazardous weather outlook posted early Thursday covers a large swath of the region, including Berks, Bucks, Carbon, Lehigh, Monroe, and Montgomery counties.

Today will be another chilly and breezy day, meteorologists say, with partly sunny skies and a high near 43. Winds will be out of the northwest at 7 to 14 mph, with gusts as high as 24 mph.

Tomorrow, the long-term forecast starts off with a weak disturbance that will be moving in across the area from the west.

The weather service says as moisture increases ahead of a warm front, some light precipitation may develop shortly after the daybreak hours on Friday. Temperatures for portions of the area will still be near freezing, so if precipitation starts early enough Friday morning, there could be a wintry mix, with the potential for some light freezing to occur for some areas.

The most likely places to see the mix would be for portions of eastern Pennsylvania, including the Lehigh Valley, and in central and northern New Jersey. As the day progresses, most places are expected to warm above freezing, so any precipitation would turn to rain. The exceptions would be the possibility for the highest elevations to remain near freezing.

Any precipitation that occurs during the day is expected to come to an end by the evening hours on Friday, the weather service said. However, this dry weather will only be temporary as precipitation chances increase later Saturday into Saturday night and Sunday.

Here is the extended Lehigh Valley forecast from the National Weather Service:

Today

Partly sunny, with a high near 43. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

Tonight

Partly cloudy, with a low around 28. West wind 3 to 6 mph.

Friday

A slight chance of snow, freezing rain, and sleet before 10am, then a chance of rain between 10am and 4pm, then a chance of rain and sleet after 4pm. Mostly cloudy, with a high near 40. Light and variable wind. Chance of precipitation is 40%. Little or no snow and sleet accumulation expected.

Friday Night

A chance of sleet before 7pm. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 30%. Little or no sleet accumulation expected.

Saturday

Rain, mainly after 4pm. High near 45. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Night

Rain. Low around 41. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

A chance of rain. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

Sunday Night

Partly cloudy, with a low around 44.

Monday

Mostly sunny, with a high near 53.

Monday Night

Mostly cloudy, with a low around 32.

Tuesday

A chance of showers. Partly sunny, with a high near 41. Chance of precipitation is 30%.

Tuesday Night

A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.